• Name Type Board Source Added Size
  • 2SD2201

    The 2SD2201 is the subject of this 153 KB PDF, indexed as a schematic though the content is presumably a datasheet.

    Schematic · 153 KB · 2 Aug 2026
    Schematic pdf
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    153 KB
  • 2SD2200

    A 157 KB PDF dedicated to the 2SD2200, a JIS-coded part whose 2SD prefix marks an NPN low-frequency bipolar transistor.

    Schematic · 157 KB · 2 Aug 2026
    Schematic pdf
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    157 KB
  • 2SD2199

    PDF file, 105 KB, for the 2SD2199, placed under the schematic category although the name indicates a discrete transistor datasheet.

    Schematic · 105 KB · 2 Aug 2026
    Schematic pdf
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    105 KB
  • 2SD2627

    Short 28.1 KB PDF for the 2SD2627, catalogued as a schematic though it is most likely a brief datasheet.

    Schematic · 28.1 KB · 2 Aug 2026
    Schematic pdf
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    28.1 KB
  • 2SD2624

    The 2SD2624 is described in this small PDF of 30.0 KB, indexed under schematics, though a part number like this generally indicates a datasheet.

    Schematic · 30.0 KB · 2 Aug 2026
    Schematic pdf
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    30.0 KB
  • 2sd2618

    PDF for the 2SD2618, 46.6 KB, with a lowercase name and filed as a schematic. In practice, it should be a datasheet for this JIS-numbered NPN bipolar transistor, as the…

    Schematic · 46.6 KB · 2 Aug 2026
    Schematic pdf
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    46.6 KB
  • 2sd2616

    Datasheet-type PDF for the 2SD2616, 45.9 KB, listed under schematics in the index. The JIS code 2SD marks an NPN bipolar transistor meant for low-frequency circuits.

    Schematic · 45.9 KB · 2 Aug 2026
    Schematic pdf
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    45.9 KB
  • 2sd2615

    Part documentation for the 2SD2615, filed under schematics but by its name a component datasheet rather than a board drawing.

    Schematic · 47.9 KB · 2 Aug 2026
    Schematic pdf
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    47.9 KB
  • 2sd2614

    A 53.4 KB PDF covering the 2SD2614 transistor, catalogued as a schematic although the name points to a single-part datasheet.

    Schematic · 53.4 KB · 2 Aug 2026
    Schematic pdf
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    53.4 KB
  • 2sd2611

    Datasheet-style PDF for the 2SD2611, stored in the schematic category at 47.3 KB. The name gives only the part number, so revision and manufacturer are not stated.

    Schematic · 47.3 KB · 2 Aug 2026
    Schematic pdf
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    47.3 KB
  • 2sd2607

    Reference sheet for the 2SD2607 component, delivered as a 51.7 KB PDF and filed under schematics. No brand or variant appears in the name beyond the part number itself.

    Schematic · 51.7 KB · 2 Aug 2026
    Schematic pdf
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    51.7 KB
  • 2SD2604A

    A 194 KB PDF describing the 2SD2604A, listed as a schematic but most likely a transistor datasheet.

    Schematic · 194 KB · 2 Aug 2026
    Schematic pdf
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    194 KB
  • 2SD2599

    Documentation for the 2SD2599, a 251 KB PDF catalogued among schematics, larger than many single-part sheets and possibly containing characteristic curves and package…

    Schematic · 251 KB · 2 Aug 2026
    Schematic pdf
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    251 KB
  • 2SD2649

    Compact 29.7 KB PDF for the 2SD2649, placed in the schematic section though the name indicates a component datasheet.

    Schematic · 29.7 KB · 2 Aug 2026
    Schematic pdf
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    29.7 KB
  • 2SD2648

    The 2SD2648 is covered by this 29.0 KB PDF, indexed as a schematic but in practice a single-device reference.

    Schematic · 29.0 KB · 2 Aug 2026
    Schematic pdf
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    29.0 KB
  • 2SD2646

    Part sheet in PDF form, 29.1 KB, for the 2SD2646 transistor, filed in the schematic category. The name supplies only the type number, without brand or revision.

    Schematic · 29.1 KB · 2 Aug 2026
    Schematic pdf
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    29.1 KB
  • 2SD2645

    Covering the 2SD2645, this 29.3 KB PDF sits in the schematic index although the name suggests a component datasheet.

    Schematic · 29.3 KB · 2 Aug 2026
    Schematic pdf
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    29.3 KB
  • 2SD2639

    A 29.2 KB PDF documenting the 2SD2639 part, catalogued as a schematic. Nothing beyond the type number is stated in the name.

    Schematic · 29.2 KB · 2 Aug 2026
    Schematic pdf
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    29.2 KB
  • 2SD2638

    At 312 KB, this PDF for the 2SD2638 is the largest in its series and is probably a full datasheet with curves and outline drawings, though it is filed under schematics.

    Schematic · 312 KB · 2 Aug 2026
    Schematic pdf
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    312 KB
  • 2SD2635

    Component reference for the 2SD2635, a 35.2 KB PDF listed among schematics. The file name offers only the part number, with no manufacturer or revision given.

    Schematic · 35.2 KB · 2 Aug 2026
    Schematic pdf
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    35.2 KB
  • 2SD2634

    The 2SD2634 transistor is described in this 30.7 KB PDF, classified as a schematic though the name points to a datasheet.

    Schematic · 30.7 KB · 2 Aug 2026
    Schematic pdf
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    30.7 KB
  • 2SD2629

    A 40.8 KB PDF giving data on the 2SD2629, stored in the schematic category. Only the part number is present in the name.

    Schematic · 40.8 KB · 2 Aug 2026
    Schematic pdf
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    40.8 KB
  • 2SD2627LS

    Datasheet-type PDF, 30.8 KB, for the 2SD2627LS, catalogued as a schematic. The LS suffix is part of the type designation and likely refers to a specific variant or…

    Schematic · 30.8 KB · 2 Aug 2026
    Schematic pdf
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    30.8 KB
  • 2SD1819A E

    Reference PDF of 40.9 KB for the 2SD1819A, with an E tag in the name that probably denotes an English-language edition, filed under schematics.

    Schematic · 40.9 KB · 2 Aug 2026
    Schematic pdf
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    40.9 KB
  • 2SD1817

    Covering the 2SD1817, this 75.8 KB PDF is indexed as a schematic but by name is a component datasheet. No maker or revision is indicated.

    Schematic · 75.8 KB · 2 Aug 2026
    Schematic pdf
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    75.8 KB
  • 2SD1816

    A 152 KB PDF for the 2SD1816 transistor, listed in the schematic section. The name provides the part number only.

    Schematic · 152 KB · 2 Aug 2026
    Schematic pdf
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    152 KB
  • 2SD1815

    Datasheet for the 2SD1815 in PDF format, 154 KB, catalogued as a schematic. Apart from the type number, the name carries no extra details.

    Schematic · 154 KB · 2 Aug 2026
    Schematic pdf
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    154 KB
  • 2SD1806

    An 88.8 KB PDF describing the 2SD1806, filed in the schematic index although it is most likely a part datasheet.

    Schematic · 88.8 KB · 2 Aug 2026
    Schematic pdf
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    88.8 KB
  • 2SD1805

    Part data for the 2SD1805, supplied as a 96.5 KB PDF and categorised as a schematic. The name states nothing beyond the type number.

    Schematic · 96.5 KB · 2 Aug 2026
    Schematic pdf
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    96.5 KB
  • 2SD1804

    The 2SD1804 transistor is the subject of this 158 KB PDF, indexed under schematics though its name indicates a datasheet.

    Schematic · 158 KB · 2 Aug 2026
    Schematic pdf
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    158 KB
  • 2SD1803

    A 169 KB PDF for the 2SD1803, placed in the schematic category but evidently a component reference sheet. No manufacturer, revision or variant is named.

    Schematic · 169 KB · 2 Aug 2026
    Schematic pdf
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    169 KB
  • 2SD1802

    Documentation for the 2SD1802 in a 150 KB PDF, filed as a schematic though the name suggests a transistor datasheet.

    Schematic · 150 KB · 2 Aug 2026
    Schematic pdf
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    150 KB
  • 2SD1801

    A 143 KB PDF catalogued as a schematic, covering the 2SD1801 semiconductor part. Under the Japanese JIS numbering system the 2SD prefix marks an NPN bipolar transistor…

    Schematic · 143 KB · 2 Aug 2026
    Schematic pdf
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    143 KB
  • 2SD2198

    Reference sheet in PDF form, 141 KB, for the 2SD2198 transistor. The file is indexed as a schematic but is most likely a datasheet.

    Schematic · 141 KB · 2 Aug 2026
    Schematic pdf
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    141 KB
  • 2sd2195

    Covers the 2SD2195, a part whose JIS-style 2SD prefix identifies it as an NPN bipolar transistor rated for low-frequency work.

    Schematic · 67.4 KB · 2 Aug 2026
    Schematic pdf
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    67.4 KB
  • 2SD2185 E

    PDF document of 41.0 KB for the 2SD2185 transistor, with an _E suffix in the file name that is not decoded here.

    Schematic · 41.0 KB · 2 Aug 2026
    Schematic pdf
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    41.0 KB
  • 2SD2184 E

    Data for the 2SD2184, an NPN low-frequency bipolar transistor according to the Japanese 2SD numbering prefix, supplied as a 43.8 KB PDF.

    Schematic · 43.8 KB · 2 Aug 2026
    Schematic pdf
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    43.8 KB
  • 2SD2179 E

    The 2SD2179 transistor is the subject of this 43.9 KB PDF, carrying an _E suffix in its name.

    Schematic · 43.9 KB · 2 Aug 2026
    Schematic pdf
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    43.9 KB
  • 2SD2177A E

    Specification sheet in PDF format, 43.9 KB, for the 2SD2177A, the A-suffixed variant of the 2SD2177, with an additional _E tag in the name.

    Schematic · 43.9 KB · 2 Aug 2026
    Schematic pdf
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    43.9 KB
  • 2SD2177 E

    A 44.1 KB PDF for the base 2SD2177 transistor, the name also carrying an _E suffix. The 2SD prefix in the Japanese JIS scheme marks an NPN bipolar device for…

    Schematic · 44.1 KB · 2 Aug 2026
    Schematic pdf
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    44.1 KB

About schematics

A schematic is the electrical drawing of a board: it shows how every chip, MOSFET, coil and connector is wired, which rail feeds which circuit, and what voltage or resistance you should measure at each test point. It is the document you need to trace a missing rail or a short.

Schematics are published per board, not per laptop model. The same Compal LA-E891P board can sit in several HP models, so always search by the board number printed on the PCB rather than by the sticker on the case.